Depositing ₹1,20,000 every year in PPF at 7.1% gives about ₹32.5 lakh (₹32,54,567) after 15 years, all tax-free. You deposit ₹18,00,000.
Yearly deposit
₹1,20,000
After 15 years
₹32,54,567
After 20 years (one extension)
₹53,26,631
After 25 years (two extensions)
₹82,46,412
Tax on maturity
Nil
Deposit by 5 April
PPF interest is worked out on the lowest balance between the 5th and the end of each month. Depositing the full year's amount by 5 April earns interest for all 12 months.
Year by year
Year
You put in
Balance
1
₹1,20,000
₹1,28,520
2
₹2,40,000
₹2,66,165
3
₹3,60,000
₹4,13,583
4
₹4,80,000
₹5,71,467
5
₹6,00,000
₹7,40,561
6
₹7,20,000
₹9,21,661
7
₹8,40,000
₹11,15,619
8
₹9,60,000
₹13,23,348
9
₹10,80,000
₹15,45,826
10
₹12,00,000
₹17,84,099
11
₹13,20,000
₹20,39,290
12
₹14,40,000
₹23,12,600
13
₹15,60,000
₹26,05,314
14
₹16,80,000
₹29,18,812
15
₹18,00,000
₹32,54,567
Try your own numbers
Rates used: October–December 2026 where a government rate applies. Results are estimates.